Mechanical calendar



Jan. 29, 1935. P. GIROSI MECHANICAL CALENDAR Filed Dec. 14, 1933 $.Sheets-Sheet 1 A E AQ acegim Jan. 29,- 1935.

P. GIROSI MECHANICAL CALENDAR I s Sheets-Sheet '2 Filed Dec. 14, 1933 Jan. 29, 1935. P. GIROSI MECHANICAL CALENDAR Filed Dec. 14, 1933 3 Sheets-Sheet 3 Patented Jan. 29, 1935 UNITED STATES PATENT OFFICE ApplicationDecember 14, 1933, serial No, 702,402

. In Argentina September 26,1933

4 Claims. (Cl. 40115) My invention relates to an annual calendar adapted to be used throughout a year, wherein the days of the month and of the week and the month itself are shown by a mechanical-indicator, which when returned to its initial position after having indicated the last day of "the month automatically prepares the characteristics of the following month and indicates. them accurately without requiring any other movement than the forward rotation of the indicator from its initial position at the 1st of the month.

For the better understanding of the nature of this invention and in what manner the same is to be performed certain preferred embodiments will now be described and reference will be had to the accompanying drawings in which Fig. 1 is an external view of a calendar according to the invention indicating February 16, 1934.

Fig. 2 is a section of the same along the line II--1I.

Fig. 3 is a plan of the base of the calendar showing the circular grooves which control the movements for the entire year.

Fig. 4 is a section along the the base shown in Fig. 3. a

Fig. 5 is a plan of one form of indicator for the calendar.

Fig.6 is a section along -IV--IV of the indicator of Fig. 5 showing the positioning of the cross-head which under the action of a spring controls the passage of thepin 11 from one to another of the grooves a to n of Figs. 3 and 4. a

Fig. 7 is a plan of the disc carrying the days of the week, the names of the months and the holidays .of each month. a

Fig. 8 is a section along the line VV of the disc of Fig. '7 showing the series of eleven teeth or lugs which when coming into contact with the pin 11 of Fig. 6 cause a partial rotation of the said disc. Fig. 9 is a plan of the upper'cover of the calendar with a window 130., wherethrough the month and the holidays carried by disc 4 (Fig. 7) are read.

Fig. 10 is a plan of an alternative form of indicater in the shape of a disc. 3

Fig. 11 is an external view of the calendar with the indicator in the shape of a disc.

The same reference characters are used tolindicate like or corresponding parts in all the figures. The calendar may be made of metal, wood, cardboard, bakelite, celluloid, papier-mach or line In l of cast so as to give the forms shown in the figures.

Two'or more different materials may likewise be used.

The relative proportions of the parts in the drawings are merely by way'of example since these may be varied without afiecting the work- 5 ing of the device or the nature of the invention.

In accordance with the invention the calendar consists of a base disc having disposed around its periphery adouble row of numbers from 1 to 31 as shown in Fig. 0. To this base is'secured a disc 19 of smallerdiameter with twelve circular grooves a to n of varying lengths according to the number of days in each month, and communicating with each otherby means of 11 gaps diagonally disposed with respect to one of the extremities: of the grooves. This disc as well as all the others which will be described is pierced at'its centre in order to admit of the passage ,ofja small bolt provided with a nut which forms the pivot for the calendar. The base and the disc afores'aid may be formed 20 in one piece. On the disc is located the indicator 1 (Figs. -l,"2-and 5) which in one form consists of a rigid arm having a window near its circumferential end, an opening atitsycentral end, and along its length a slot in which a cross-head 8 (Figs. 5 and 6) is adapted to slide, said crosshead' beingcoupled by a spring -3-(Figsf2 and 5) of rubber or metalftothe bolt-pivot the spring being secured at one of its ends to said bolt-pivot and'at its otherend to the pin 11 (Fig. 6) passing through the cross-head. The indicator l'is further provided with the ring 10 (Fig. 5) 'of'sufiicient width and so disposed as to cover all'the large numbers on the base save the one exposed by the window. i a

At its outer end the indicator is bent over and under the base of Fig. 3 but in'such wise as to permit of smooth movement.

The window of the indicator has a pointer 9 v (Figs. 2 and 5) bent back towards the centreso 40 as to point to the day of the week borne by disc 4 as shown in Figs. 2 and '7.'j

The disc l (Figs. 2 and 7) is positioned over the indicator and suitably spaced therefrom by washers. On the upper face of this disc are printed'the names of the months, the days'of five complete weeks and theholidays in each month. The underside of the disc carries ll teeth or lugs 12 (Fig. 8) at the proper spacing so that the pin 11 (Figl'B) 'may engage with one of'said' teeth for each backward movement of the indicator.

To complete the calendar and so that disc 4-. (Figs. 2 and 7) shall not rotate'when there is no engagement between thepin 11 and the teeth 12, the cover 5 (Figs. 2-and 9) is placedover it and is secured by the nut '7 (Fig. 2). This cover is provided with the window 13a (Fig. 9) permitting the names of the months and the holidays therein to be read.

With reference to Fig. 10, the indicator 1 with its ring 10 may be made in the form of a complete disc 1a, provided with a window 13 lying near its periphery, a plurality of circular slots 14 lying immediately below said window 13, and a radial slot 11) disposed below said circular slots in such wise that its centre-line coincides with that of the window 13. The window 13 is adapted to replace the upper part of the window in the indicator 1 (Fig. 1) wherethrough the days date (the large number) is read. The circular slots are provided to permit the inner row of dates to be seen so that the dates for one complete month may be read. The radial slot replaces the longitudinal slot in the indicator 1 of Fig. 5 and is preferably bound with metal if the disc 10. is made of material easily abraided, since it has to accommodate the sliding cross-head 8.

The operation'of the calendar is as follows:

When the indicator is set to January 1st, pin 11 engages with groove of disc 2 (Figs. 2, 3 and 4) maintaining the spring 3 (Figs. 2 and 5) in extended'position. The indicator is then rotating so as successively toframe or expose the dates of the month in or through the window of the indicator 1 or window 13 of the disc 10., until the 31st is reached. In'order to commence February, the indicator is brought back and during this movement the pin 11 (Fig. 6) under the influence of the spring 3 (Figs. 2 and 5) will pass over to groove b (Figs. 3 and 4) through the proper diagonal gap. At the same time, said pin will engage with the appropriate tooth 12 of disc 4 (Figs. 2, 7 and 8) thus causing the disc 4 to move until it brings under the window 13a (Fig. 9) and opposite the day 1, the characteristics ofthe month of February. v When the indicator after being rotated day by day reaches the 28th (or 29th if the year is a leapyear) it cannot proceed because the groove b (Figs. 3 and 4) is of a length calculated to prevent the passage of pin 11 (Fig 6).

Whenever pin 11 (Figs. 2and 6) on backward movement of the indicator, engages with the respective tooth or lug of disc 4 (Figs. 2, .7 and 8) it carries said disc with it and clears the way for its subsequent forward movement, said way being along the same groove into which the pin passed on backward movement of the indicator.

The indicator issuccessively moved backwards and forwards month by month or day by day, respectively, the steps described for the months of January and February being automatically repeated.

4 The gaps between the grooves of the base disc are formed in such wise that during forward movement of the indicator, the pin 11 (Fig. 6) cannot pass therethrough, whereas it is compelled to do so on the return movement of the indicator owing to the centripetal bias exercised by the spring.

Having now particularly described and ascertained the nature of this invention and in what manner the same is to be performed, what I claim 1. In a calendar of the type described a platelike member, intercommunicating concentric grooves of varying lengths on said member, an indicator pivoted to said plate-like member, a pin slidably associated with said indicator and adapted to engage successively with each of said grooves so as to limit the rotational travel of said indicator in accordance with the length of the groove with which said pin is engaged, and spring biasing means for causing said pin to pass from one of said grooves to the next, the intercommunication between the grooves being such that the pin may pass from one groove to the next during movement in one direction only of the indicator.

2. A mechanical calendar adapted to indicate simultaneously the day of the month, the date thereof, the month, the holidays in said month and the dates of all the days in the month, comprising a base, concentric grooves formed on said base, indicating means pivotally related to said base, a window in the indicating means for exposing the days date, a guide member adapted to slide in, a longitudinal slot in said indicating means, a pin connected to said guide member and adapted to move in said grooves, resilient biasing means for said guide member for biasing the same toward the pivotal point of the indicating means, communicating gaps between said grooves so shaped as to permit said pin to move from one groove into the next inner groove during movement in one direction only of the indicating means, a disc pivotally mounted concentrically with said indicating means,lugs on said disc adapted to be engaged by said pin upon movement of the indicating means in the same direction as is necessary for permitting the passage of the pin from one groove to the next, a cover for said disc, an arcuate slot and a depending radial slot in said cover, said base bearing near its periphery a double row of numbers from 1 to 31, said disc bearing near its periphery characters representing the days offive successive weeks, and concentrically therewith indicia representing the holidays or" each month, the names of the month being disposed radially on said disc below said indicia. U

3. A mechanical calendar adapted to indicate simultaneously the day of the month, the date thereof, the month, the holidays in said month and the dates of all the days in the month, comprising a circular base, concentric grooves in said base, an indicator pivoted to the centre of the base and provided at its free end with an annular ring concentric with the base, a window in the indicator for exposing the days date, a guide member adapted to slide in a longitudinal slot in said indicator, a pin connected to said guide member and adapted to move in said grooves, resilient biasing'means for said guide member for biasing the same toward the pivotal point of the indicator, communicating gaps between said grooves so shaped as to-permit said pin to move from one groove into the next inner groove during movement in one direction only of the indicator, a disc pivotally mounted concentrically with said indicator, lugs on said disc adapted to be engaged by said pin upon movement of the indicator in the same direction as is necessary for permitting the passage of the pin from one grooveto the next, a cover for said disc, an arcuate slotand a depending radial slot in said cover, said base bearing near its periphery a double row of numbers from l to 31 said disc bearing near its periphery characters representing the days of five successive weeks, and concentrically therewith indicia representing the holidays of each month, the names of the month being disposed radially on saiddisc below said indicia. I

4. A mechanical calendar adapted to indicate simultaneously the day of the month, the date thereof, the month, the holidays in said month and the dates of all the days in the month, comprising a base, concentric grooves formed on said base, an indicator pivotally related to said base, a window in the indicator for exposing the days date, a plurality of arcuate openings disposed immediately below said window for exposing the dates of all the days in the month, a guide member adapted to slide in a longitudinal slot in said indicator, a pin connected to said guide member and adapted to move in said grooves, resilient biasing means for said guide member for biasing the same toward the pivotal point of the indicator, communicating gaps between said grooves so shaped as to permit said pin to move from one groove into the next inner groove during movement in one direction only of the indicator, a disc pivotally mounted concentrically with said indicator, lugs on said disc adapted to be engaged by said pin upon movement of the indicator in the same direction as is necessary for permitting the passage of the pin from one groove to the next, a cover for said disc, an arcuate slot and a depending radial slot in said cover, said base bearing near its periphery a double row of numbers from 1 to 31 said disc bearing near its periphery characters representing the days of five successive weeks, and concentrically therewith indicia representing the holidays of each month, the names of the month being disposed radially on said disc below said indicia.

PABLO GIROSI. 

